gsm: add osmo_mobile_identity_decode_from_l3_buf()
We have osmo_mobile_identity_decode_from_l3(), which takes a msgb as
argument, and decodes msg->l3h. Not all callers have their data in this
form. Offer a more flexible API for the same decoding.
For example, before the new function, osmo-hnbgw, which extracts a NAS
PDU from asn.1 packed data for CN pooling, would allocate a new msgb and
copy the NAS data just to pass a data pointer as argument.
Related: SYS#6412
Change-Id: I9bd99ccd01f0eedc091fe51687ff92ae1fdff60b
diff --git a/include/osmocom/gsm/gsm48.h b/include/osmocom/gsm/gsm48.h
index 93a9e21..8323c72 100644
--- a/include/osmocom/gsm/gsm48.h
+++ b/include/osmocom/gsm/gsm48.h
@@ -96,6 +96,8 @@
int osmo_mobile_identity_cmp(const struct osmo_mobile_identity *a, const struct osmo_mobile_identity *b);
int osmo_mobile_identity_decode(struct osmo_mobile_identity *mi, const uint8_t *mi_data, uint8_t mi_len,
bool allow_hex);
+int osmo_mobile_identity_decode_from_l3_buf(struct osmo_mobile_identity *mi, const uint8_t *l3_data, size_t l3_len,
+ bool allow_hex);
int osmo_mobile_identity_decode_from_l3(struct osmo_mobile_identity *mi, struct msgb *msg, bool allow_hex);
int osmo_mobile_identity_encoded_len(const struct osmo_mobile_identity *mi, int *mi_digits);
int osmo_mobile_identity_encode_buf(uint8_t *buf, size_t buflen, const struct osmo_mobile_identity *mi, bool allow_hex);